Question

Study the diagram about the varying pressures of Earth’s Layers.

Earth apostrophe s layers. The Crust at depth of 0 kilometers, upper mantle depth 410 kilometers, lower mantle depth 2,900 kilometers at 125 gigapascals, 2,200 degrees Celsius. Outer core depth 5,100 kilometers at 330 gigapascals, 5,000 degrees Celsius. Inner core at 364 gigapascals, 5,500 degrees Celsius.

Which is the best estimated pressure, represented in units of GPa, of the lower mantle?

110 GPa
220 GPa
305 GPa
360 GPa

Answer 1

110 GPa

The diagram lists the lower mantle at about 125 GPa, so 110 GPa is the closest choice among the options.